17-OCTADECYNOIC ACID
- CAS No.
- 34450-18-5
- Chemical Name:
- 17-OCTADECYNOIC ACID
- Synonyms
- 17-ODYA;Alkynyl Stearic Acid;Octadec-17-ynoic acid;ODYA;17-ODA;P450scc;Alkyne-stearic acid;17-OCTADECYNOIC ACID;17-ODYA, 10 mM in DMSO;DZIILFGADWDKMF-UHFFFAOYSA-N
- CBNumber:
- CB8175243
- Molecular Formula:
- C18H32O2
- Molecular Weight:
- 280.45
- MDL Number:
- MFCD00077382
- MOL File:
- 34450-18-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 17-Octadecynoic acid ≥95% (GC) | O8382 | 5mg | $336 |
| 17-Octadecynoic acid ≥95% (GC) | O8382 | 25mg | $1270 |
| 17-Octadecynoic Acid ≥98% | 90270 | 1mg | $28 |
| 17-Octadecynoic Acid ≥98% | 90270 | 5mg | $83 |
| 17-Octadecynoic Acid ≥98% | 90270 | 10mg | $152 |
| Boiling point | 400.8±18.0 °C(Predicted) |
|---|---|
| Density | 0.922±0.06 g/cm3(Predicted) |
| storage temp. | Store at RT |
| solubility | Soluble to 50 mM in ethanol and to 100 mM in DMSO |
| form | White solid. |
| pka | 4.78±0.10(Predicted) |
| color | White to off-white |
| InChI | 1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h1H,3-17H2,(H,19,20) |
| InChIKey | DZIILFGADWDKMF-UHFFFAOYSA-N |
| SMILES | C#CCCCCCCCCCCCCCCCC(O)=O |
| CAS DataBase Reference | 34450-18-5(CAS DataBase Reference) |
| FDA UNII | L8WPG7CL86 |
| UNSPSC Code | 12352106 |
| NACRES | NA.77 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| PPE | Eyeshields, Gloves, type N95 (US) |
| WGK Germany | 3 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
17-OCTADECYNOIC ACID price More Price(43)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | O8382 | 17-Octadecynoic acid ≥95% (GC) | 34450-18-5 | 5mg | $336 | 2026-04-30 | Buy |
| Sigma-Aldrich | O8382 | 17-Octadecynoic acid ≥95% (GC) | 34450-18-5 | 25mg | $1270 | 2026-04-30 | Buy |
| Cayman Chemical | 90270 | 17-Octadecynoic Acid ≥98% | 34450-18-5 | 1mg | $28 | 2026-04-30 | Buy |
| Cayman Chemical | 90270 | 17-Octadecynoic Acid ≥98% | 34450-18-5 | 5mg | $83 | 2026-04-30 | Buy |
| Cayman Chemical | 90270 | 17-Octadecynoic Acid ≥98% | 34450-18-5 | 10mg | $152 | 2026-04-30 | Buy |
17-OCTADECYNOIC ACID Chemical Properties,Uses,Production
Description
Alkynyl stearic acid can be used to identify and characterize the post-translational acylation of proteins with powerful Click Chemistry.
Uses
17-ODYA (17-Octadecynoic acid) is a potent suicide inhibitor of LTB4 ω-oxidase.
Definition
ChEBI: Octadec-17-ynoic acid is an acetylenic fatty acid that is octadecanoi acid (stearic acid) which has been doubly dehydrogenated at positions 17 and 18 to give the corresponding alkynoic acid. It has a role as a P450 inhibitor, an EC 1.14.14.94 (leukotriene-B4 20-monooxygenase) inhibitor and an EC 1.14.15.3 (alkane 1-monooxygenase) inhibitor. It is a long-chain fatty acid, an acetylenic fatty acid, a terminal acetylenic compound and a monounsaturated fatty acid.
Biological Activity
Potent suicide inhibitor of LTB 4 ω -hydroxylase.
Biochem/physiol Actions
17-Octadecynoic acid (7-ODYA) is an irreversible inhibitor of cytochrome P450 isozymes, that participates in long-chain fatty acid metabolism.
storage
Store at -20°C
17-OCTADECYNOIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
17-OCTADECYNOIC ACID Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32467 | 58 |
| Hubei Xindesheng Material Technology Co., Ltd. | +8618971041571 | vickyzhao@whdschem.com | China | 174 | 58 |
| BOC Sciences | 16314854226; +16314854226 | inquiry@bocsci.com | United States | 19853 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52704 | 58 |
| Zhuoer Chemical Co., Ltd | 02120970332; +8613524231522 | sales@zhuoerchem.com | China | 2904 | 58 |
| Hangzhou MolCore BioPharmatech Co.,Ltd. | +86-057181025280; +8617767106207 | sales@molcore.com | China | 49734 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; | support@targetmol.com | United States | 39040 | 58 |
| GIHI CHEMICALS CO.,LIMITED | +86-571-86217390; +8618058761490 | info@gihichemicals.com | China | 49954 | 58 |
| Wuhan Topule Biopharmaceutical Co., Ltd | +8618327326525 | masar@topule.com | China | 8467 | 58 |
View Lastest Price from 17-OCTADECYNOIC ACID manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-05-11 | 17-ODYA
34450-18-5
|
$41.00-153.00 | 98.21% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2026-05-11 | 17-ODYA
34450-18-5
|
$41.00-153.00 | 98.21% | 10g | TargetMol Chemicals Inc. | ||
![]() |
2025-06-07 | Alkynyl Stearic Acid
34450-18-5
|
5mg | >95.00% | 5mg | Xian confluore Biological Technology Co., Ltd. |
-

- 17-ODYA
34450-18-5
- $41.00-153.00
- 98.21%
- TargetMol Chemicals Inc.
-

- 17-ODYA
34450-18-5
- $41.00-153.00
- 98.21%
- TargetMol Chemicals Inc.
-

- Alkynyl Stearic Acid
34450-18-5
- $0.00
- >95.00%
- Xian confluore Biological Technology Co., Ltd.





